Shreveport, LA water hardness

Tap water hardness
47mg/L
2.7gpg
Soft

Reported by Shreveport Water System · August 2025

LA typical
102 mg/L
EPA health violations since 2016
23
Data
Utility report

Shreveport water measures 47 mg/L (2.7 gpg) of hardness, soft by USGS standards. The number comes from Shreveport Water System, dated August 2025.

Shreveport on the hardness scale, with nearby cities
060120180240300360+LA typical 102Ruston: 20 mg/LRuston 20Alexandria: 26 mg/LAlexandria 26Bossier City: 48 mg/LBossier City 48Monroe: 54 mg/LMonroe 54Carencro: 99 mg/LCarencro 99Scott: 99 mg/LScott 99Lafayette: 102 mg/LLafayette 102Lake Charles: 120 mg/LLake Charles 120Sulphur: 211 mg/LSulphur 211Carlyss: 211 mg/LCarlyss 211Shreveport 47mg/L as calcium carbonate060120180240300360+LA 102Ruston: 20 mg/LRuston 20Alexandria: 26 mg/LAlexandria 26Bossier City: 48 mg/LBossier Ci. 48Monroe: 54 mg/LMonroe 54Sulphur: 211 mg/LSulphur 211Carlyss: 211 mg/LCarlyss 21147 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

At 47 mg/L, Shreveport is 55 mg/L below the typical Louisiana figure of 102. Of the 10 nearest cities we track, 2 have softer water and 8 have harder. The range nearby runs from 20 mg/L in Ruston to 211 in Sulphur.

What 47 mg/L means at home

Soap and shampoo lather with very little product. Kettles and showerheads stay mostly free of white crust.

Some people notice that soap feels slow to rinse off in soft water. That slippery feel is normal and harmless.

Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.

What to do about it

Nothing, as far as hardness goes. At 47 mg/L a softener would have almost nothing to remove.

Carbon filter

If the water tastes of chlorine, a pitcher or faucet carbon filter takes care of that. It does not change hardness.

EPA record for Shreveport's water system

City of Shreveport Water System · PWSID LA1017031

23 health-based violations since 2016

Serves about 192,378 people from surface water.

Health-based
23
Monitoring or reporting
1
Open now
0
20162017201820192020202120222023202420252026Total trihalomethanes (TTHM)Surface Water Treatment RuleChlorite'16'18'20'22'24'26Total trihalomethanes (TTHM)Surface Water Treatment RuleChlorite
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Total trihalomethanes (TTHM)a disinfection byproduct72023–2026Resolved
Surface Water Treatment Rulefiltration and disinfection152018–2026Resolved
Chlorite12016Resolved

Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.

Questions

Is Shreveport water hard?

No. It measures about 47 mg/L (2.7 grains per gallon), which the USGS classes as soft.

What is the water hardness in Shreveport in grains per gallon?

About 2.7 gpg. One grain per gallon equals 17.1 mg/L, so 47 mg/L divided by 17.1 gives 2.7.

Has the Shreveport water system had EPA violations?

EPA records show 23 health-based violations for City of Shreveport Water System since 2016, involving Total trihalomethanes (TTHM), Surface Water Treatment Rule, Chlorite. There were also 1 monitoring or reporting violation, which are about late or missing tests and notices.

Nearby cities

All 32 cities in Louisiana

Hardness data: TapWaterData US Water Hardness (utility report, August 19, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.